Publications by authors named "Christian Pfister"

Article Synopsis
  • Enhanced recovery after surgery (ERAS) is a protocol aimed at improving surgical outcomes, with evidence lacking for certain urological procedures like nephrectomy and radical prostatectomy.
  • A study was conducted at an academic institution to analyze the effects of ERAS implementation on patients undergoing these surgeries, focusing on metrics like length of stay and postoperative outcomes.
  • Results showed that patients in the ERAS group had a significantly shorter hospital stay—1.3 days less for nephrectomies and 2.2 days less for prostatectomies—without an increase in complications or readmissions.
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Purpose: Variant histology or divergent differentiation (VH/DD) of urothelial carcinoma (UC) may impact outcomes after neoadjuvant chemotherapy (NAC) in muscle-invasive bladder cancer. Our aim was to assess the pathological response and progression-free survival (PFS) of patients with VH/DD in the prospective VESPER clinical trial.

Materials And Methods: This post hoc study included 300 NAC-treated patients with available transurethral diagnostic slides.

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Background: The optimal perioperative chemotherapy for patients with muscle-invasive bladder cancer is not defined. The VESPER (French Genito-Urinary Tumor Group and French Association of Urology V05) trial reported improved 3-year progression-free survival with dose-dense methotrexate, vinblastine, doxorubicin and cisplatin (dd-MVAC) versus gemcitabine and cisplatin (GC) in patients who received neoadjuvant therapy, but not in the overall perioperative setting. In this Article, we report on the secondary endpoints of overall survival and time to death due to bladder cancer at 5-year follow-up.

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Pelvic surgery for endometriosis is associated with a risk of bladder and digestive sequelae. Sacral neuromodulation (SNM) has been shown to be effective in the treatment of overactive bladder (OAB) and voiding dysfunction (VD). This study aimed to evaluate the efficacy of sacral neuromodulation (SNM) in treating voiding dysfunction (VD) following endometriosis surgery.

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Objective: To evaluate the prognostic value of programmed death ligand-1 (PD-L1) and programmed death-1 (PD-1) expression in patients with upper tract urothelial carcinoma (UTUC).

Patients And Methods: A retrospective multicentre study was conducted in 283 patients with UTUC treated with radical nephroureterectomy (RNU) between 2000 and 2015 at 10 French hospitals. Immunohistochemistry analyses were performed using 2 mm-core tissue microarrays with NAT105® and 28.

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Documentary climate data describe evidence of past climate arising from predominantly written historical documents such as diaries, chronicles, newspapers, or logbooks. Over the past decades, historians and climatologists have generated numerous document-based time series of local and regional climates. However, a global dataset of documentary climate time series has never been compiled, and documentary data are rarely used in large-scale climate reconstructions.

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Neoadjuvant cisplatin-based chemotherapy (NAC) followed by radical cystectomy and pelvic lymph node dissection is the optimal treatment for patients with muscle-invasive bladder cancer. In recent years, the VESPER trial showed a statistically significant higher progression-free survival with dd-MVAC (dose dense methotrexate, vinblastine, doxorubicin, and cisplatin) compared to GC (gemcitabine and cisplatin). In the present report, we refine the characterization and outcome of patients whose cystectomy specimens were pathologically free of cancer (pathological complete response, pCR).

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Testicular metastasis of carcinoma is a rare condition. We report a rare case of right testicular metastasis of prostatic adenocarcinoma in an 84 years old patient, after more than 20 years of controlled disease under androgen deprivation therapy. Follow-up consisted in PSA monitoring, clinical examination, CT and bone scan.

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Purpose: The optimal perioperative chemotherapy regimen for patients with nonmetastatic muscle-invasive bladder cancer is not defined.

Patients And Methods: Between February 2013 and March 2018, 500 patients were randomly assigned in 28 French centers and received either six cycles of dose-dense methotrexate, vinblastine, doxorubicin, and cisplatin (dd-MVAC) once every 2 weeks or four cycles of gemcitabine and cisplatin (GC) once every 3 weeks before surgery (neoadjuvant group) or after surgery (adjuvant group). We report the primary end point of the GETUG-AFU V05 VESPER trial (ClinicalTrials.

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Article Synopsis
  • Cisplatin-based combination chemotherapy is the standard treatment for muscle-invasive bladder cancer before surgery, but the best chemotherapy options are still unclear.
  • In the VESPER trial, patients were given either gemcitabine and cisplatin (GC) or a more intense regimen called dd-MVAC, and their kidney function was monitored during treatment.
  • Results showed that at least 4 cycles of cisplatin are necessary for effective treatment, and while extending beyond 4 cycles does not worsen kidney function, it also does not provide significant additional benefits in local cancer control.
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Background: immunotherapy became the first line treatment of metastatic renal cell carcinoma (mRCC). Nevertheless, a better understanding of the specificities of targeted therapies (TT) in the elderly population could be helpful in order to improve the management of mRCC in this population. The aim of this retrospective study was to assess efficacy and safety of sunitinib and sorafenib used as first-line TT in 70 years older patients compared to younger patients.

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To evaluate efficacy and safety of BGG492 (selurampanel; an orally active, competitive AMPA glutamate receptor antagonist) in patients with moderate-to-catastrophic chronic subjective tinnitus. Study (NCT01302873) enrolled patients with subjective tinnitus based on THI severity grade 3, 4 or 5 (moderate, severe or catastrophic), and those with chronic (>6 and <36 months) tinnitus. Primary endpoints were clinical status of tinnitus using TBF-12 and tinnitus loudness using VAS after multiple dose 2-week BGG492 treatment.

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Background: The current pathological tumour-node-metastasis (pTNM) classification for upper tract urothelial carcinoma (UTUC) does not include any risk stratification of pT3 renal pelvicalyceal tumours.

Objective: To assess the prognostic impact of pT3 subclassification in a multicentre cohort of patients with UTUC of the renal pelvicalyceal system undergoing radical nephroureterectomy (RNU).

Design, Setting, And Participants: Data from all consecutive patients treated with RNU for pT3 renal pelvicalyceal UTUC at 14 French centres from 1995 to 2013 were reviewed retrospectively.

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Purpose: To assess whether progressive and primary muscle invasive bladder cancer (MIBC) have different prognosis after radical cystectomy or not. To date only a few data are available on this topic with conflicting results. Further studies on large cohort are needed to clarify these outcomes that may influence bladder cancer management for these patients.

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Background: Perioperative chemotherapy (neoadjuvant or adjuvant) has been developed to increase overall survival for nonmetastatic muscle-invasive bladder cancer (MIBC). Retrospective studies or prospective phase II trials have been reported to use dose-dense methotrexate, vinblastine, doxorubicin, and cisplatin (dd-MVAC) or gemcitabine and cisplatin (GC). As dd-MVAC has shown higher response rates in metastatic disease, better efficacy is expected in the perioperative setting.

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Introduction: The aim of this study was to compare observation and early drainage by ureteral stenting in patients with blunt renal trauma and urinary extravasation.

Materials And Methods: A retrospective national multicenter study was performed including all patients admitted for renal trauma at 17 hospitals between 2005 and 2015. Patients presenting with a urinary extravasation on initial imaging were considered for inclusion.

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Background: Magnetic resonance imaging (MRI) is today strongly recommended in prostate cancer (PCa) diagnosis. Therefore, MRI/ultrasound (MRI/US) fusion-guided biopsy is becoming the new standard patients management.

Methods: We report our experience during the last 4 years using this technique, with a protocol of 6 random cores (instead of the most used 12 cores protocol) associated to the target cores (2 to 3 per lesion).

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The main objective of the French GETUG/AFU V05 VESPER randomized phase III study was to assess the efficacy of dd-MVAC and GC in term of progression-free survival in patients for whom chemotherapy has been decided, before or after surgery. A total of 500 patients have been randomized in 28 reference centers. Inclusion criteria were urothelial carcinoma without neuro-endocrine variant, disease defined by a T2, T3 or T4a N0 (pelvic lymph node ≤ 10 mm on CT scan) M0 staging for patients receiving neoadjuvant chemotherapy or pT3 or pT4 or pN+ and M0 for patients receiving adjuvant chemotherapy.

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Objective: To assess PD-L1 expression in tumor (TC) and tumor infiltrating immune cells (IC) as a predictive factor of BCG therapy failure in high-risk NMIBC.

Materials And Methods: Patients treated with complete resection followed by bladder BCG instillation for high-risk NMIBC were included. Early recurrence (ER) was defined as tumor recurrence after BCG induction course.

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The treatment landscape in metastatic renal cell carcinoma has changed fundamentally over the last decade by the development of antiangiogenic agents, mammalian target of rapamycin inhibitors and immunotherapy. Outside of the context of a clinical trial, the treatments are used sequentially. We describe results under real-life conditions of a sequential treatment strategy, before the era of immunotherapy.

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Aims: To evaluate the impact of the pre-operative maximum detrusor pressure (MDP) on efficacy outcomes after incontinentation by sphincterotomy or urethral stent placement in male patients with neurogenic detrusor-sphincter dyssynergia (DSD).

Methods: A retrospective study was performed in 41 male patients treated between 2006 and 2013 in a tertiary reference center. All patients had a neurogenic DSD confirmed by baseline urodynamic studies, and were unable or secondary failed to practice CISC.

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